Thermostaf for radiators



March 30 1926.

J. H. COOPER I THERMOSTAT FOR RADIATORS Filed Zizue/ 1221" finea/z Q0 7 61 subject of the King water or 'coolin Patented Mar. 30, 1926. 1

,U ITED STATES PATENT OFFICE-m .Tms H. woman, or :omnorr,

MAINE.

I MICHIGAN, assronon, BY mnsm: ASSIGNMENTS,- -'ro mcconn mma'rona me. 00., or mrrnorr,

MICHIGAN, A CORPORATION 01 'rnnauosra'r For. mma'ron's.

1 lpplicatlon filed November 10, 1922. Serial no; 000,010.

To all whom it may concern:

Be it known that I, Jams H. Cooraa, a

of Great Britain, residin at Detroit, in and gtate of Michigan, have invented new and useful Improvements in Thermostats for Radiators, of which the following is a specification.

This invention relates to thermostatic valve devices for radiators for internal combustion engines.

One object of my invention is to provide a thermostatic valve device which, when the tem is cold, wi 1 not cut out the entire radiator and allow it to freeze in cold weather before the thermostatic valve opens to cut in the radiator as heretofore, but allows a portion of-the radiator core to remain in circulation with the cylinder block when the valve is closed and thus permit the cooling medium to be warmed up'more quickly on starting the engine by bemg required to handle only a part of the entire amount of water in the radiator.

A further object of my invention is to locate the thermostat in the flow to the motor through that art of the radiator left in circulation with t e cylinder block when the valve is closed so that said valve will be opened as soon as the water in the flow is warmed by the engine and cut in the entire radiator before waiting until all the water therein is warm enough to operate the thermostat and open the valve.

Another object of my invention is to dl-.

vide the core into front and rear circulating sections and to have the thermostatic device cut out the rear section when the water is more expensive 'ifadiator shutters.

The invention lleonsists further in the matters hereinafter described and more artieularly set forth in the appended claims. In the accompanying drawings- Fig. 1 is a front view of an assembled ra diator provided with a thermostatic device the county of Wayne medium in the cooling sysof myinvention, a portion of the upper part of the radiator being cut away to show the device;

Fig. 2 is an enlarged fragmentary vertical sectional View taken on line 2-2 of Fig. 1, the valve being shown closed;

Fig. 3 is a similar sectional view of the same parts with the valve open; and

Fig. 4 is a horizontal sectional view taken on line 4-4 of Fig. 2.

The radiator shown in the drawings comprises a core 1- contained within an outer metal shell or casin 2. These parts are made and assembled in accordance with the usual radiator practice. The core, through which the cooling medium circulates, has the usual upper and'lower'tanks and interposed water conduits, these being corrugated when the core is-of the cellular type and in the form of vertical tubes when the core is of the fin and tube type. It is immaterial to my invention whether the core is of one type or the other, although for illustrative purposes I have shown the fin and tube type in the drawings. The tubes are indicated by 3, the horizontal fins by 4, and the upper tank by 5.

The thermostatic device of my invention, when arranged as in the drawings, is 10- rated in the upper tank 5. It has a casing (S with an inlet pipe or hose connection 7 extending outside of the rear wall 8 of said tank. In the casing 6 are two upright partition walls 9, 10, arranged substantially parallel and being integrally connected with the bottom wall 11 of the casin These partition walls 9, 10 are connecte together at their upper ends by a connecting wall 12,

which is spaced downward from the top wall 13 of the casing 6 to provide a free passage 1 1 from the inlet 7 to the chamber 15 formed in front of the partition wall 10.

The bottom. wall 11 of the casing 6 near its front wall 16 is provided with an opening 17 establishing communication between the front portion of the radiator core and the chamber 15. The rear portion of said core is divided from-the front ortion at this opening 17 by a partition wal 18. This wall extends clear across the tank 1 from one side to the other and has the casing 6 inserted through it, as shown in Fig. 2. on opposite sides of the casing 6, the partition wall 18 extends up to a plate 19, which ex tends. forward to the front .wall of the tank and divides the latter into front and rear sections, as apparent. Said wall 19 has an opening 19 to permit filling both sectlons of the core through the filling neck 21;. In

the detailed arrangement shown in Figs. 2 to 4, it will be noted that the wall 18 is so located that it cuts out from communication with the chamber 15 all but the first two rows of tubes 3.

Connnunication between the inlet 7 and the rear section ofjthe core is had through an opening 22 in the bottom wall 11 of the casing 6 between the partition walls 9 and 10 and a port 20 in the partition wall 9. This port is controlled by a valve member 23 carried by a stem 24 horizontally arranged and slidably supported in the partition wall 10. For opening and closing the valve 23, bellows type located in the chamber 15 and associated with the valve stem 24.

The structure shown and described operates as follows. The bellows 25 being contracted by the influence of the cold water in the core 1 holds the valve 23 closed and the rear section of the core 1 cut out of circulation with the inlet. 7. hen the motor. associated with the radiator, is started. the circulation of the cold water is through the front section or first two rows of water tubes 3 by reason of the fact that the inlet 7 communicates with such section of the com through the passage 14, chamher 15, and opening 17.

As the rear section of the core is cut out of the circulation, the motor and the cooling medium will warm up more quickly than if the entire core were left in the system, because only a part of the entire amount of water in the core is handled. The heat radiated from the water circulating through the front section of the core will warm up the rear section, and the air drawn through the core by the fan in passing over the warmer front section before the rear section will be warmed before reaching the latter and assist in warming it while the valve 23 remains closed, thus preventing the rear section from freezing in cold weather before the entire radiator is cut in the circulation. As soon as the temperature in the front section is suflicient to expand the bellows 25, the valve 23 will be opened and place the entire radiator in circulation.

The thermostat device being located within the radiator makes possible the cutting out of one or more sections of the radiator when starting the motor and thus eliminates the chances of freezing the entire radiator as is the case when the thermostatic device is located between the radiator and motor as heretofore. Also having the thermostatic device contained in the radiator not only protects it from injury, but also provides a suitable mounting for the device. My inthere is a thermostat 25of the.

vention also permits the cooling water to be quickly heated. when starting the motor and thus avoids the necessity or excuse for the use of radiator curtains or the more expensive radiator shutters as heretofore employed.

\Vhile I have shown and described herein in detail a structure of my invention, it is of course to be understood that the details of construction and arrangement of parts may be variously changed and modified without departing from the spirit and scope of my invention.

I claim as my invention:

1. The combination with a radiator for internal combustion engines, of .means dividing the radiator core into front and rear circulating sections, and a thermostatic valve device carried by the radiator and leaving the front section of the core in the circulation when the cooling medium is cold, said valve device being operated by the temperatureof the'cooling medium in the front section for cutting the rear section into and out of the circulation.

2. The combination with a radiator for internal combustion engines, of means dividing the radiator core into front and rear circulating sections, and a thermostatic valve device leaving the front section in the circulation and operated by the temperature of the cooling medium in the front section for cutting the rear section into and out of the circulation, the heat radiated from the front section when warm and the air being warmed in passing over the same before passing over the rear section assisting in warming up the latter before the valve device opens.

3. The combination with a radiator for internal combustion engines having a core provided with a tank and connected conduits for the cooling medium to flow therethrough,

of means in said tank dividing the con duits of the core into two circulating sections, and a thermostatic valve device located in said tank, said device leaving one section of the core in the circulation when the coolingmedium is cold and operatedby the temperature of the cooling medium in that section for cuttin the other section into and out of the circulation.

4. The combination with a radiator for internal combustion engines having a core provided with a tank and connected tubes for the cooling medium to flow therethrough, of a partition wall in said tank dividing said tubes of the core into front and rear circulating sections, a casing in said tank and extending through said wall, said casing for controlling the outlet opening to the rear sectiomnnd a thermostat devlce 0' rated by the temperature of the 000 in medium in the front section and conneete with 881d valve for opening and closing the same. v r I 5. A thermostatic attachment for radlators, comprising a oasin having an inlet wall, sai casing being di-.

0 'm'g-m one vlded into a plurality of chembers by partition wells, saidcasing having two; outlet seventh day of November one partition wall for controlling from the inlet opening to the ad acent outlet 3 opening, and a" thermostat in the chamher having the other outlet opening and connected with said valve for opening. and closin the same.

in testimony that I claim theforegoing as my invention, I eflix m signature,

n Dn

JAMES H. COOPER.

this. 

